Telephone set



FIG. 1 is a front, top and right side perspective view of a telephone set showing my new design;

FIGS. 2 and 3 are respectively front and rear elevational views;

FIGS. 4 and 5 are respective left and right side elevational views; and

FIG. 6 is a bottom plan view. 

The ornamental design for a telephone set, as shown and described. 